CWC(4)
Cast Iron
- Joined
- Jan 2, 2017
- Location
- North Central MA
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It could be a shrink rule for pattern makers. The marking is unusual. They were usually marked in inches per foot. The amount of shrink is large, possibly double shrink for making cast metal patterns.
Shrink was my first thought, but when I worked out the amount of shrink I discounted it - didn't think of ''double shrink'' though
But I agree very odd way of marking a rule.
The mystery continues ..............................
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